//------------------------------------------------------------------------------------------------------------------------------------------------------
void FDrive_Update(void)
{
if (gBF.needToMountFlash == 1) // Если обнаружено физическое подключение внешнего диска
{
uint timeStart = gTimerMS;
gBF.needToMountFlash = 0;
Display_SetDrawMode(DrawMode_Hand, FuncDrawDisplay);
Timer_Enable(kTimerMountFlash, 10, Display_Update);
if (f_mount(&USBDISKFatFs, (TCHAR const*)USBDISKPath, 1) != FR_OK)
{
Display_ShowWarning(WrongFileSystem);
}
else
{
gFlashDriveIsConnected = true;
FM_Init();
ChangeStateFlashDrive();
}
while (gTimerMS - timeStart < 3000)
{
};
Timer_Disable(kTimerMountFlash);
Display_SetDrawMode(DrawMode_Auto, 0);
}
else
{
USBH_Process(&handleUSBH);
}
}
int sound_init(void)
{
/* If we are reinitializing, shut down sound emulation */
if(snd.enabled)
{
sound_shutdown();
}
/* Disable sound until initialization is complete */
snd.enabled = 0;
/* Check if sample rate is invalid */
if(snd.sample_rate < 8000 || snd.sample_rate > 48000)
return 0;
// Init sound emulation
SN76489Init(0, snd.psg_clock, 0);
SN76496SetRoute(0, 0.70, BURN_SND_ROUTE_BOTH);
FM_Init();
/* Inform other functions that we can use sound */
snd.enabled = 1;
return 1;
}
//------------------------------------------------------------------------------------------------------------------------------------------------------
void FDrive_Mount(void)
{
FM_Init();
ChangeStateFlashDrive();
if (f_mount(&USBDISKFatFs, (TCHAR const*)USBDISKPath, 0) != FR_OK)
{
LOG_ERROR("Не могу примонтировать диск");
}
}
int sound_init(void)
{
uint8 *buf = NULL;
int restore_fm = 0;
int i;
/* Save register settings */
if(snd.enabled && sms.use_fm)
{
restore_fm = 1;
buf = malloc(FM_GetContextSize());
FM_GetContext(buf);
}
/* If we are reinitializing, shut down sound emulation */
if(snd.enabled)
{
sound_shutdown();
}
/* Disable sound until initialization is complete */
snd.enabled = 0;
/* Check if sample rate is invalid */
if(snd.sample_rate < 8000 || snd.sample_rate > 48000)
return 0;
/* Assign stream mixing callback if none provided */
if(!snd.mixer_callback)
snd.mixer_callback = sound_mixer_callback;
/* Calculate number of samples generated per frame */
#ifdef PSP
/* PSP version requires a sample count divisible by 64 */
snd.sample_count = ((snd.sample_rate / snd.fps) + 63) & ~63;
#else
snd.sample_count = (snd.sample_rate / snd.fps);
#endif
/* Calculate size of sample buffer */
snd.buffer_size = snd.sample_count * 2;
/* Free sample buffer position table if previously allocated */
if(smptab)
{
free(smptab);
smptab = NULL;
}
/* Prepare incremental info */
snd.done_so_far = 0;
smptab_len = (sms.display == DISPLAY_NTSC) ? 262 : 313;
smptab = malloc(smptab_len * sizeof(int));
if(!smptab) return 0;
for (i = 0; i < smptab_len; i++)
{
double calc = (snd.sample_count * i);
calc = calc / (double)smptab_len;
smptab[i] = (int)calc;
}
/* Allocate emulated sound streams */
for(i = 0; i < STREAM_MAX; i++)
{
snd.stream[i] = malloc(snd.buffer_size);
if(!snd.stream[i]) return 0;
memset(snd.stream[i], 0, snd.buffer_size);
}
/* Allocate sound output streams */
snd.output[0] = calloc(snd.sample_count, sizeof(int16));
snd.output[1] = calloc(snd.sample_count, sizeof(int16));
if(!snd.output[0] || !snd.output[1]) return 0;
/* Set up buffer pointers */
fm_buffer = (int16 **)&snd.stream[STREAM_FM_MO];
psg_buffer = (int16 **)&snd.stream[STREAM_PSG_L];
/* Set up SN76489 emulation */
SN76489_Init(0, snd.psg_clock, snd.sample_rate);
/* Set up YM2413 emulation */
FM_Init();
/* Inform other functions that we can use sound */
snd.enabled = 1;
/* Restore YM2413 register settings */
if(restore_fm)
{
FM_SetContext(buf);
}
return 1;
}
